/*
 * Copyright 2002-present the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.springframework.graphql.execution;


import graphql.schema.GraphQLSchema;

import org.springframework.util.Assert;


/**
 * {@link GraphQlSource.Builder} that uses an externally prepared
 * {@link GraphQLSchema}.
 *
 * @author Rossen Stoyanchev
 */
final class ExternalSchemaGraphQlSourceBuilder
		extends AbstractGraphQlSourceBuilder<ExternalSchemaGraphQlSourceBuilder>
		implements GraphQlSource.Builder<ExternalSchemaGraphQlSourceBuilder> {

	private final GraphQLSchema schema;


	ExternalSchemaGraphQlSourceBuilder(GraphQLSchema schema) {
		Assert.notNull(schema, "GraphQLSchema is required");
		this.schema = schema;
	}


	@Override
	protected GraphQLSchema initGraphQlSchema() {
		return this.schema;
	}

}
